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CONSOLIDATED BALANCE SHEETS (Parenthetical) ¥ in Thousands, $ in Thousands | Dec. 31, 2019 CNY (¥) shares | Dec. 31, 2019 USD ($) $ / shares shares | Dec. 31, 2018 CNY (¥) shares | Dec. 31, 2018 $ / shares | Mar. 31, 2018 shares | Sep. 18, 2015 $ / shares shares | Sep. 18, 2015 ¥ / shares shares
--- | --- | --- | --- | --- | --- | --- | ---
Accrued expenses and other current liabilities | ¥ 435,225 | $ 62,516 | ¥ 455,284 |  |  |  |
Deferred revenue, current | 1,670,076 | 239,891 | 1,765,085 |  |  |  |
Lease liabilities, current | 40,236 | 5,780 |  |  |  |  |
Payables to acquire buildings | 61,540 | 8,840 | 61,540 |  |  |  |
Long-term debt, current | 32,500 | 4,668 | 32,500 |  |  |  |
Deferred revenue, non-current | 1,558,694 | 223,892 | 1,520,940 |  |  |  |
Lease liabilities, non-current | 616,246 | 88,518 |  |  |  |  |
Deferred tax liabilities | 87,954 | 12,634 |  |  |  |  |
Other non-current liabilities | 11,469 | 1,647 | 17,147 |  |  |  |
Long-term debt, non-current | ¥ 193,125 | $ 27,741 | ¥ 225,625 |  |  |  |
Ordinary shares, par value | (per share) |  |  |  |  |  | $ 0.00005 | ¥ 0.0003
Ordinary shares, shares authorized |  |  |  |  |  | 1,000,000,000 | 1,000,000,000
Ordinary shares, shares issued |  |  |  |  |  | 1 | 1
Ordinary shares, shares outstanding |  |  |  |  | 4,329,000 |  |
Class A Ordinary Shares |  |  |  |  |  |  |
Ordinary shares, par value | $ / shares |  | $ 0.00005 |  | $ 0.00005 |  |  |
Ordinary shares, shares authorized | 796,062,195 | 796,062,195 | 796,062,195 |  |  |  |
Ordinary shares, shares issued | 1,830,183 | 1,830,183 | 1,818,383 |  |  |  |
Ordinary shares, shares outstanding | 1,728,006 | 1,728,006 | 1,773,301 |  | 63,714 |  |
Class B Ordinary Shares |  |  |  |  |  |  |
Ordinary shares, par value | $ / shares |  | $ 0.00005 |  | 0.00005 |  |  |
Ordinary shares, shares authorized | 826,389 | 826,389 | 826,389 |  |  |  |
Ordinary shares, shares issued | 826,389 | 826,389 | 826,389 |  |  |  |
Ordinary shares, shares outstanding | 826,389 | 826,389 | 826,389 |  |  |  |
Class C Ordinary Shares |  |  |  |  |  |  |
Ordinary shares, par value | $ / shares |  | $ 0.00005 |  | $ 0.00005 |  |  |
Ordinary shares, shares authorized | 203,111,416 | 203,111,416 | 203,111,416 |  |  |  |
Ordinary shares, shares issued | 4,258,686 | 4,258,686 | 4,265,286 |  |  |  |
Ordinary shares, shares outstanding | 4,258,686 | 4,258,686 | 4,265,286 |  | 4,265,286 |  |
VIEs |  |  |  |  |  |  |
Accrued expenses and other current liabilities | ¥ | ¥ 209,727 |  | ¥ 241,204 |  |  |  |
Deferred revenue, current | ¥ | 1,162,938 |  | 1,765,085 |  |  |  |
Lease liabilities, current | ¥ | 22,659 |  |  |  |  |  |
Deferred revenue, non-current | ¥ | 1,096,482 |  | 1,520,940 |  |  |  |
Lease liabilities, non-current | ¥ | 358,467 |  |  |  |  |  |
Deferred tax liabilities | ¥ | 4,415 |  |  |  |  |  |
Other non-current liabilities | ¥ | ¥ 135 |  | ¥ 135 |  |  |  |

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